CN210457044U - Weighing device applied to elevator inspection and replacing weights - Google Patents
Weighing device applied to elevator inspection and replacing weights Download PDFInfo
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- CN210457044U CN210457044U CN201921152010.1U CN201921152010U CN210457044U CN 210457044 U CN210457044 U CN 210457044U CN 201921152010 U CN201921152010 U CN 201921152010U CN 210457044 U CN210457044 U CN 210457044U
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Abstract
The utility model belongs to the technical field of elevator inspection equipment, in particular to a weighing device applied to elevator inspection for replacing weights, which comprises an iron sand pill storage box for storing iron sand pills; the weighing box is used for loading the iron sand pills and replacing weights with the total mass of the iron sand pills; the lifting mechanism is respectively connected with the iron sand pill storage box and the weighing box and is used for conveying iron sand pills; and the weighing control system is used for receiving a pressure signal of the total mass of the weighing box and the iron sand shots in real time and controlling the lifting mechanism according to the pressure signal. The utility model discloses make the test result more accurate, need not personnel's transport, practiced thrift the cost of labor, greatly alleviateed the work load of dimension personnel of protecting, improved inspection work efficiency.
Description
Technical Field
The utility model belongs to the technical field of elevator inspection equipment, especially, relate to a be applied to weighing device who replaces the weight in the elevator inspection.
Background
At present, the safety detection and inspection organization of special equipment in China carries out supervision inspection and periodic inspection once a year on the elevator in a special equipment catalog according to a special equipment safety law, wherein inspection items comprise an overload protection device, an operation test, a balance coefficient test, a brake test and other tests, and certain substances with weight are required to weigh and test whether each index of the elevator meets the requirements of national standards or inspection and inspection regulations. At present, all special equipment detection mechanisms basically use standard weights as weighing devices, the standard weights are 20 kg/block or 25 kg/block in weight, the rated load capacity of 1 elevator is mostly between hundreds of kilograms and thousands of kilograms, and in the process of testing, a plurality of elevator maintenance personnel are needed to carry dozens of weights into a car manually; the weights required by different tests are different, and the maintenance personnel can meet the requirements of all tests only by moving up and down for several times, which wastes time and labor; some residential areas have more elevators, need to be inspected one by one, and are tested one by one, so that the labor intensity is high, the labor efficiency is low, and the inspection working efficiency is low.
Disclosure of Invention
In order to overcome the defect that exists among the prior art, the utility model aims at providing a be applied to the weighing device who replaces the weight in the elevator inspection for the test result is more accurate, need not personnel's transport, has practiced thrift the cost of labor, has greatly alleviateed the work load of dimension guarantor personnel, has improved inspection work efficiency.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a be applied to weighing device of replacement weight in elevator inspection, include:
the iron sand pill storage box is used for storing iron sand pills;
the weighing box is used for loading the iron sand pills and replacing weights with the total mass of the iron sand pills;
the lifting mechanism is respectively connected with the iron sand pill storage box and the weighing box and is used for conveying iron sand pills; and
and the weighing control system is used for receiving a pressure signal of the total mass of the weighing box and the iron sand shots in real time and controlling the lifting mechanism according to the pressure signal.
Furthermore, the upper part of the weighing box is square, the lower part of the weighing box is funnel-shaped, and an iron sand pill outlet is formed in the bottom of the weighing box.
Furthermore, the weighing box is made of transparent hard plastic materials, and scale marks are marked on the wall of the weighing box.
Further, the weighing box further comprises a support rod, and the support rod is horizontally fixed at the bottom of the weighing box.
Further, still include the rubber cushion, it sets up between the bottom of weighing box and vaulting pole.
Furthermore, the weighing control system is arranged between the bottom of the weighing box and the support rod and comprises a pressure sensor, a signal processor, a single chip microcomputer, an operation panel, a pressure display, a power supply and a relay KM1, wherein the pressure sensor is connected with a signal detection port of the single chip microcomputer through the signal processor, the operation panel is connected with an input port of the single chip microcomputer, the pressure display is connected with an output port of the single chip microcomputer, and the relay KM1 is connected with the single chip microcomputer; the power supply supplies power for the weighing control system.
Furthermore, the elevator car weight limiting switch device further comprises a weight limiting switch QS which is fixed on the car ground right below the stay bar.
Furthermore, the lifting mechanism uses a screw conveyor, and the screw conveyor comprises a power mechanism, a shell, a screw shaft arranged in the shell and a screw blade arranged on the screw shaft; the power structure comprises an alternating current motor and a belt transmission mechanism, wherein an output shaft of the alternating current motor is connected with one end of the spiral shaft through the belt transmission mechanism; the feed inlet of shell and the iron sand ball exit linkage of iron sand ball bin, the discharge gate of shell and the iron sand ball access connection of weighing the case.
Furthermore, the weighing control system also comprises a motor start-stop control circuit, wherein the motor start-stop control circuit comprises a main circuit and a control circuit;
the main circuit is as follows: the 220V alternating current power supply is connected with the alternating current motor through a weight limit switch QS, a fuse FU1 and a normally open contact of a relay KM;
the control circuit is as follows: the 220V alternating current power supply is connected with a coil of the relay KM through a fuse FU2, a normally closed contact of a relay KM1 and an automatic reset switch SB, and the normally open contact of the relay KM is connected with the automatic reset switch SB in parallel.
Furthermore, universal wheels are mounted at the bottoms of the iron sand pill storage box and the weighing box.
Compared with the prior art, the utility model has the advantages of it is following:
in order to solve the problems that the previous elevator load test needs maintenance personnel to carry a plurality of weights repeatedly, which takes time and labor, so that the test time of each elevator is prolonged, and the physical strength of the maintenance personnel is greatly checked, the utility model provides a weighing device for replacing weights in the elevator test, which utilizes iron sand pills to replace standard weights to carry out the load test, the iron sand pills with the diameter of 2mm are spherical, the size is proper, the density is large and uniform, the weighing device is an ideal weight substitute for the elevator load test, the weighing device has simple structure, convenient operation, safety, reliability and strong applicability, the weighing quantity is displayed by a pressure display, when the mass exceeds the initial setting value, the automatic stop and the load increase can be realized, the test result is more accurate, the personnel transportation is not needed, the labor cost is saved, and the workload of the maintenance personnel is greatly reduced, the inspection work efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a weighing device applied to replace weights in elevator inspection according to an embodiment of the invention;
fig. 2 is a schematic block circuit diagram of a weighing control system according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a motor start/stop control circuit according to an embodiment of the present invention;
FIG. 4 is a schematic view of the internal structure of the screw conveyor housing.
The reference numbers in the figures denote: 1. the iron sand pill weighing system comprises iron sand pills, 2 iron sand pill storage boxes, 3 weighing boxes, 4 iron sand pill discharge ports, 5 graduation lines, 6 supporting rods, 7 rubber cushion blocks, 8 pressure sensors, 9 signal processors, 10 single-chip microcomputers, 11 operation panels, 12 pressure displays, 13 power supplies, 14 relays KM1, 15 weight limit switches QS, 16 spiral conveyors, 17 alternating current motors, 18 belt transmission mechanisms, 19 shells, 20 spiral shafts, 21 spiral blades, 22 iron sand pill outlets of the iron sand pill storage boxes, 23 iron sand pill inlets of the weighing boxes, 24 motor start-stop control circuits, 25 universal wheels, 26 supports, 27 iron sand pill inlets of the iron sand pill storage boxes, 28 shell feed inlets, 29 shell discharge ports and 30 weighing control systems.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the weighing apparatus applied to replace weights in elevator inspection provided by the embodiment comprises an iron shot storage box 2, a weighing box 3, a lifting mechanism and a weighing control system 30.
Iron sand ball bin 2 mainly used is at the in-process storage iron sand ball 1 of transportation, iron sand ball bin 2 adopts rigid plastic to make, diameter 2 mm's iron sand ball 1 is spherical, the size is suitable, density is big and density is even, be convenient for carry, be the weight substitute of elevator load test ideal, iron sand ball export 22 of iron sand ball bin is seted up to the lower part side of iron sand ball bin 2, install four universal wheels 25 in iron sand ball bin 2's bottom, universal wheel 25 not only can effectively brake, still easily remove the bin box, alleviate the manpower burden.
The lifting mechanism uses a screw conveyor 16, as shown in fig. 1 and 4, the screw conveyor 16 comprises a power mechanism, a housing 19, a screw shaft 20 arranged inside the housing 19 and a screw blade 21 mounted on the screw shaft 20; the power mechanism comprises an alternating current motor 17 and a belt transmission mechanism 18, the alternating current motor 17 is arranged above the shell 19, and an output shaft of the alternating current motor 17 is connected with one end of the spiral shaft 20 through the belt transmission mechanism 18; the feed inlet 28 of shell is connected with the iron sand ball export 22 of iron sand ball bin through thickening cowhells pipeline, and the discharge gate 29 of shell is connected with the iron sand ball import 23 of weighing the case through thickening cowhells pipeline, and thickening cowhells pipeline is durable wear-resisting. The lifting mechanism further comprises a support 26, the shell 19 of the spiral conveyor 16 is fixed above the support 26 in a hinged connection mode, the inclination angle of the shell 19 can be adjusted as required, and the application range is wide. The rated voltage of the alternating current motor 17 is 220VAC, and the 220V alternating current voltage is the household voltage of urban residents, so that the alternating current motor can be conveniently used. The alternating current motor 17 works, the alternating current motor 17 can drive the spiral shaft 20 and the spiral blades 21 to rotate together, the rotary spiral blades 21 push the iron sand pills 1 to convey the iron sand pills 1 to the spiral conveyor 16, the iron sand pills 1 in the iron sand pill storage box 2 can be conveyed into the weighing box 3, the transmission flow is controllable, and the mass loading is uniform and reliable.
The weighing box 3 is used for loading the iron sand pills 1, the upper portion of the box body is square, the lower portion of the box body is funnel-shaped, an iron sand pill outlet 4 used for discharging the iron sand pills 1 is formed in the bottom of the funnel-shaped weighing box 3, the iron sand pill outlet 4 is in a blocking state during normal operation, and an iron sand pill inlet 23 of the weighing box is formed in the side face of the upper portion of the weighing box 3. Weighing case 3 adopts the transparent rigid plastic material to make, it has scale mark 5 to mark on weighing case 3's wall, the scale is from down up, mark in proper order by little to big, mark 630KG respectively, 800KG, 1000KG, 1050KG, scales such as 1600KG, can cover the rated loading capacity of most elevators, when weighing control system 30 damages unable demonstration load quality, can be according to 1 quality of iron sand ball of 5 marks of scale mark in addition known weighing case 3's quality, obtain the quality of load. Four universal wheels 25 are installed at the bottom of the weighing box 3, so that the weighing box 3 can move conveniently.
In addition to the above structure, a stay 6 is horizontally fixed to the bottom of the weighing compartment 3. As shown in fig. 2, the weighing control system 30 is disposed between the bottom of the weighing box 3 and the support rod 6, and includes a pressure sensor 8, a signal processor 9, a single chip microcomputer 10, an operation panel 11, a pressure display 12, a power supply 13, a relay KM1, and a motor start-stop control circuit 24. Pressure sensor 8 sensitivity is high, the degree of accuracy is high, pressure sensor 8's weighing range scope is 1 ~ 2000KG, can satisfy all experimental requirements of dragging drive passenger elevator, can detect out the total mass of weighing case 3 and the inside iron sand ball 1 of weighing case 3, operating panel 11 can input the experimental required load numerical value of elevator, and reach the experimental required load numerical value of elevator of initial setting when total mass, pressure sensor 8 can give a signal to singlechip 10, can cut off alternating current motor 17's power 13, stop carrying iron sand ball 1, through pressure display 12, can accurately show the loaded how much of quality, show pressure numerical value in real time, realize the loaded accurate measurement of quality. When the pressure sensor 8 detects that the pressure changes, the voltage of the pressure sensor 8 changes, but the voltage signal with weak change needs to be amplified by the signal processor 9, the amplified signal is sent to the single chip microcomputer 10, the single chip microcomputer 10 outputs a signal to the relay KM1, and the normally closed contact of the relay KM1 is controlled to be opened and closed to control the motor start-stop control circuit 24, so that the 220V alternating current motor 17 is controlled to be started and braked. The power supply 13 may here use 5V dc.
As shown in fig. 3, the motor start-stop control circuit 24 includes a main circuit and a control circuit; the main circuit is as follows: the 220V alternating current power supply is connected with the alternating current motor 17 through a weight limit switch QS15, a fuse FU1 and a normally open contact of a relay KM; the control circuit is as follows: the 220V alternating current power supply is connected with a coil of the relay KM through a fuse FU2, a normally closed contact of a relay KM1 and an automatic reset switch SB, and the normally open contact of the relay KM is connected with the automatic reset switch SB in parallel. Automatic bounce-off after pressing automatic re-setting switch SB, because relay KM's coil circular telegram, relay KM's normally open contact is closed, alternating current motor 17 begins to operate, when pressure sensor 8 detected weighing box 3 and iron sand ball 1's total weight and reached initial set, single-chip microcomputer 10 gave relay KM1 a signal, make relay KM 1's coil circular telegram, relay KM 1's normally closed contact disconnection, relay KM's coil loses electricity, relay KM's normally open contact is opened, alternating current motor 17 stop operation.
A weight limit switch QS15 is fixed on the ground of the car right below the stay bar 6, the weight limit switch QS15 can effectively prevent the pressure sensor 8 from being damaged due to the fact that the weight of the car exceeds the range value of the pressure sensor 8, and the power supply 13 of the alternating current motor 17 can be automatically disconnected when the weight of the car exceeds the bearing limit of the weighing box 3 when the weighing control system 30 is damaged. When the mass of the iron sand shot 1 is too heavy, the supporting rod 6 bends and deforms downwards due to gravity along with the descending of the bottom of the weighing box 3, when the supporting rod 6 contacts a weight limit switch QS15, the weight limit switch QS15 is disconnected, the switch is directly connected in series with a 220V main circuit of the alternating current motor 17, the current of the main circuit is directly disconnected, and the supporting rod 6 abuts against the weight limit switch QS15, so that the supporting rod 6 does not descend any more, and the pressure sensor 8 and the weighing box 3 are protected.
In order to protect the weighing box 3, a rubber cushion block 7 is padded between the bottom of the weighing box 3 and the support rod 6, the rubber cushion block 7 has elastic deformation and can restore the original shape, and therefore damage and reduction of service life caused by long-time stress on the weighing box 3 are avoided.
The working principle is as follows:
when the elevator inspection needs to be tested, the weighing box 3 replacing the weight is placed in the car, the iron sand pill storage box 2 is placed outside the car or in a car for transporting the storage box, the inclination angle of the screw conveyor 16 is adjusted according to the iron sand pill outlet 22 of the iron sand pill storage box and the iron sand pill inlet 23 of the weighing box, the angle is proper, the feeding hole 28 of the shell is connected with the iron sand pill outlet 22 of the iron sand pill storage box, and the discharging hole 29 of the shell is connected with the iron sand pill inlet 23 of the weighing box. After a parameter quality value needing to be set is input on the operation panel 11, the automatic reset switch SB is pressed and then automatically bounces open, because the coil of the relay KM is electrified, the normally open contact of the relay KM is closed, the alternating current motor 17 starts to operate, the alternating current motor 17 is started and drives the helical blade 21 to rotate, the iron sand balls 1 in the iron sand ball storage box 2 are transported to the weighing box 3, the single chip microcomputer 10 monitors in real time through the pressure sensor 8 and feeds back the total mass of the weighing box 3, when the pressure sensor 8 detects that the mass in the weighing box 3 reaches an initial set value, the single chip microcomputer 10 controls the coil of the relay KM1 to be electrified, the normally closed contact of the relay KM1 is disconnected, the coil of the relay KM is powered off, the normally open contact of the relay KM is. At this time, the mass in the weighing device instead of the weight satisfies the requirement, and the test can be performed. When the weighing control system 30 fails, the weight increases, the stay bar 6 touches the weight limit switch QS15, the weight limit switch QS15 is disconnected, and the alternating current motor 17 is powered off, so that the pressure sensor 8 and the weighing box 3 are protected.
When the test is finished, the angle of the screw conveyor 16 is adjusted, so that the feeding hole 28 of the shell is connected with the iron sand pill discharging hole 4 of the weighing box 3, and the discharging hole 29 of the shell is connected with the iron sand pill inlet 27 of the iron sand pill storage box. The ac motor 17 is started to discharge the iron sand shots 1 into the iron sand shot storage bin 2, thereby performing the next test.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A weighing device applied to elevator inspection for replacing weights is characterized by comprising:
the iron sand pill storage box is used for storing iron sand pills;
the weighing box is used for loading the iron sand pills and replacing weights with the total mass of the iron sand pills;
the lifting mechanism is respectively connected with the iron sand pill storage box and the weighing box and is used for conveying iron sand pills; and
and the weighing control system is used for receiving a pressure signal of the total mass of the weighing box and the iron sand shots in real time and controlling the lifting mechanism according to the pressure signal.
2. The weighing device applied to the elevator inspection for replacing the weight as claimed in claim 1, wherein the upper part of the weighing box is square, the lower part of the weighing box is funnel-shaped, and an iron sand pill outlet is formed at the bottom of the weighing box.
3. The weighing device applied to elevator inspection for replacing weights as claimed in claim 1, wherein the weighing box is made of transparent hard plastic material, and the wall of the weighing box is marked with scale marks.
4. The weighing apparatus applied to an elevator inspection as a substitute weight according to claim 1, further comprising a stay bar horizontally fixed to the bottom of the weighing compartment.
5. The weighing device applied to the elevator inspection for the replacement of the weight as recited in claim 4, further comprising a rubber pad block disposed between the bottom of the weighing box and the stay.
6. The weighing device applied to the elevator inspection for replacing the weights is characterized in that the weighing control system is arranged between the bottom of the weighing box and the support rods and comprises a pressure sensor, a signal processor, a single chip microcomputer, an operation panel, a pressure display, a power supply and a relay KM1, wherein the pressure sensor is connected with a signal detection port of the single chip microcomputer through the signal processor, the operation panel is connected with an input port of the single chip microcomputer, the pressure display is connected with an output port of the single chip microcomputer, and the relay KM1 is connected with the single chip microcomputer; the power supply supplies power for the weighing control system.
7. The weighing apparatus applied to an elevator test as a substitute weight according to claim 6, further comprising a weight limit switch QS fixed to a car floor right below the stay.
8. The weighing device applied to the elevator inspection as the substitute weight is characterized in that the lifting mechanism uses a screw conveyor, the screw conveyor comprises a power mechanism, a shell, a screw shaft arranged inside the shell and a screw blade arranged on the screw shaft; the power mechanism comprises an alternating current motor and a belt transmission mechanism, and an output shaft of the alternating current motor is connected with one end of the spiral shaft through the belt transmission mechanism; the feed inlet of shell and the iron sand ball exit linkage of iron sand ball bin, the discharge gate of shell and the iron sand ball access connection of weighing the case.
9. The weighing device applied to the elevator inspection for replacing the weight is characterized in that the weighing control system further comprises a motor start-stop control circuit, and the motor start-stop control circuit comprises a main circuit and a control circuit;
the main circuit is as follows: the 220V alternating current power supply is connected with the alternating current motor through a weight limit switch QS, a fuse FU1 and a normally open contact of a relay KM;
the control circuit is as follows: the 220V alternating current power supply is connected with a coil of the relay KM through a fuse FU2, a normally closed contact of a relay KM1 and an automatic reset switch SB, and the normally open contact of the relay KM is connected with the automatic reset switch SB in parallel.
10. The weighing device applied to the elevator inspection for replacing the weights as claimed in claim 1, wherein universal wheels are mounted at the bottoms of the iron shot storage box and the weighing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921152010.1U CN210457044U (en) | 2019-07-22 | 2019-07-22 | Weighing device applied to elevator inspection and replacing weights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921152010.1U CN210457044U (en) | 2019-07-22 | 2019-07-22 | Weighing device applied to elevator inspection and replacing weights |
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| Publication Number | Publication Date |
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| CN210457044U true CN210457044U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921152010.1U Active CN210457044U (en) | 2019-07-22 | 2019-07-22 | Weighing device applied to elevator inspection and replacing weights |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436292A (en) * | 2019-07-22 | 2019-11-12 | 河南省特种设备安全检测研究院 | A kind of weighing device applied to substitution counterweight in elevator inspection |
| CN111721569A (en) * | 2020-06-30 | 2020-09-29 | 江西省交通工程质量监督站试验检测中心 | Bridge bearing capacity detection device |
-
2019
- 2019-07-22 CN CN201921152010.1U patent/CN210457044U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436292A (en) * | 2019-07-22 | 2019-11-12 | 河南省特种设备安全检测研究院 | A kind of weighing device applied to substitution counterweight in elevator inspection |
| CN111721569A (en) * | 2020-06-30 | 2020-09-29 | 江西省交通工程质量监督站试验检测中心 | Bridge bearing capacity detection device |
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Inventor after: Wang Wenbin Inventor after: Zhai Jiayi Inventor after: Wen Tao Inventor after: Zhao Heng Inventor after: Qin Dinglin Inventor after: Huang Xiangbin Inventor after: Han Chunpeng Inventor after: Chang Chang Inventor after: Li Lingling Inventor after: Song Binjie Inventor before: Wang Wenbin Inventor before: Zhai Jiayi Inventor before: Wen Tao Inventor before: Zhao Heng Inventor before: Qin Dinglin Inventor before: Huang Xiangbin Inventor before: Han Chunpeng Inventor before: Chang Chang Inventor before: Li Ling Inventor before: Song Binjie |